Characteristics of Potential Tsunami Evacuee and Evacuation Infrastucture in Pangandaran Beach, Indonesia
Abstract Pangandaran Regency is a strategic area that supports various economic and social activities. However, the existence of this strategic area is threatened by the potential of tsunami disaster, especially from the megathrust along the South Coast of Java Island. One of the efforts to enhance tsunami preparedness is to conduct evacuation plan and drill. Based on previous tsunami occurrence, it is known that success of evacuation during disaster is still limited by lack of community knowledge, preparedness, and limited infrastructure such as informative evacuation route maps, evacuation signs and proper evacuation sites. Therefore, the purpose of this study is to identify people's behavior in carrying out evacuations and actual condition of the current evacuation infrastructure which is later be used to obtain comprehensive information as the basis for evacuation plans preparation. This study aims to disseminate questionnaires to 174 respondents in Pangandaran Tourism Area and map tsunami evacuation infrastructure. This study shows a high awareness of tsunami hazards, in which 82% of respondents choose to evacuate after experiencing an earthquake or getting an early tsunami warning. In addition to the result, some respondents still do not know the route or evacuation site. Uninformed shelter destination and route choice result in potential congestion on the main roads, which slows evacuation by compromising survival rates. Three Pangandaran official TES can accommodate approximately 11,900 people, while the capacity of alternative TES if utilized 100% can accommodate 21,291 people. This indicates that the official TES and the new Alternative TEST can accommodate the villagers and some of tourists if the number of tourists reaches the maximum. Therefore, the existing building can be utilized as Temporary Evacuation Sites. Furthermore, there is a call to evacuation signs maintenance, in which some signs are currently in inappropriate condition such as damaged or show misleading information.